Full Stack Developer Junior-Mid
Junior-mid full-stack developer at Millennial Software (an employee-owned security/defense software firm) supporting a government customer on a contract slated to start early 2027. The role builds data-driven web apps across UI, backend services, and data layers, deploys to Kubernetes with Helm, and improves CI/CD and observability.
- Compensation
- Not disclosed
- Location
- Chantilly VA
- Work setup
- Not specified
- Seniority
- Middle
- Employment
- Contract
- Experience
- Not specified
- Category
- Fullstack
- Posted
Skills
Must have
- Comfortable collaborating closely with users and developers to build tools in mission-critical environments
- Design, build, test, and ship full-stack features spanning UI, backend services, and data layers
- Build and maintain scalable APIs and service integrations
- Implement frontend components with attention to usability, responsiveness, and accessibility
- Deploy and maintain software in Kubernetes using helm charts and command line tools
- Write automated tests and participate in code reviews
- Monitor, troubleshoot, and resolve production issues; participate in on-call/incident response
- Improve CI/CD, developer workflows, and observability (logging, metrics, tracing)
- Follow secure development practices
Nice to have
- Passionate about the full application lifecycle: design, coding, testing, implementation, deployment, support, and maintenance
Full description
About Millennial Software:
Millennial Software is revolutionizing the landscape of security and defense by leveraging our core competencies in software development, automation, DevSecOps, and machine learning.
- We are an employee-owned company, every employee receives equity in the company
- 100% company-paid medical, dental, and vision premiums for you and all dependents
- Ability to get increased salary if you don't need medical/dental/vision
- 100% company-paid disability and life insurance benefits
- 15% 401(k) company contribution
- 30 days of PTO/holidays
- Generous training budget
- Paid Paternal and Maternal Leave
- Business development / growth incentives
- Top notch company swag
About the Position:
Millennial Software is seeking a Junior-Mid Full Stack Software Developer to join our collaborative team supporting a Government customer. This is for a future contract slated to start in early 2027. You’ll contribute to the design, development, and support of modern, data-driven applications and tools that simplify complex user workflows and enable mission-critical decisions.
This is a great opportunity for a motivated developer to grow technical skills across the full stack, with a particular focus on modern software development processes and technologies.
The ideal candidate is passionate in the full lifecycle of application, including design, coding, testing, implementation, deployment as well as support and maintenance. The candidate must be comfortable collaborating closely with users and developers to build and maintain polished, high-performance tools in mission-critical environments.
Essential Functions:
- Design, build, test, and ship full-stack features spanning user interfaces, backend services, and data layers.
- Collaborate with product and design to translate requirements into technical plans and iterative deliverables.
- Build and maintain scalable APIs and service integrations; ensure correctness, reliability, and performance.
- Implement and maintain frontend components with attention to usability, responsiveness, and accessibility.
- Deploy, upgrade and maintain software components into Kubernetes based infrastructures using helm charts and command line tools.
- Write automated tests and participate in code reviews to maintain quality and reduce defects.
- Monitor, troubleshoot, and resolve production issues; participate in on-call or incident response as needed.
- Improve developer workflows (CI/CD, local dev, tooling) and system observability (logging, metrics, tracing).
- Document solutions, decisions, and operational runbooks to support long-term maintainability.